Wex 7eleven Rude customer service and the triple charged my account! Total ripoff! Portland ME

I was a victim of bank fraud. I made a payment on my wex gas card and the payment was returned. Once I realized this I attempted to make 2 additional payments but this time Wex kept returning my payments and charging me extremely high fees, late payments, return check fees. I only owed $160.08 in gas credit. After Wex kept returning my payment, I paid $71 which is the overdue amount by Western Union. I called Wex to verify receipt. The Rep told me she saw the payment and she put my account back to active.

She stated that since I was a new customer and had tried so hard to make payments that she es going to waive the deposit that they were saying I would have to pay to continue using my card. The account went back to active but the $71 payment never reflected on my account. This was 2 days ago. I went to pay the balance today which should be $89.38, Wex suspended the account again and added extremely high fees making my balance $309.08 for a gas charge of $89.38! I tried to resolve this by offering to pay what I owe and close the account. The rep was cold to me and unwilling to work with me. I tried so many times to bring this account current but they kept taking my payment then sending it back to my bank and charging me a return fee. This is unethical and illegal practice. They are making it look like I didn’t have funds in my account to pay but intentionally sent my payment back just to jack my account up in fees.